CAJ | 학술논문

可靠和强韧的城市公交网络不仅关系到城市居民的出行便捷性，同时也对维持整个城市系统的正常运转起着关键性作用．复杂系统的可靠性和强韧性的一个重要指标就是冗余度，即同一功能组件在一个系统中的重复备份．然而，对于城市公交网络的冗余程度的认识依然比较模糊．文章基于复杂网络的连通性理论和遗传优化算法，利用两种公交网络的冗余度的度量指标，即全局冗余度和局域冗余度，对8个具有城市化梯度的中国城市公交网络进行全面的冗余度分析．结果显示，公交网络的全局冗余度明显高于局域冗余度，同时城市中的局域冗余连通块呈现明显的异质分布特征．研究结果对于未来公交线路优化和设计具有一定的参考价值．
가고화강인적성시공교망락불부관계도성시거민적출행편첩성，동시야대유지정개성시계통적정상운전기착관건성작용．복잡계통적가고성화강인성적일개중요지표취시용여도，즉동일공능조건재일개계통중적중복비빈．연이，대우성시공교망락적용여정도적인식의연비교모호．문장기우복잡망락적련통성이론화유전우화산법，이용량충공교망락적용여도적도량지표，즉전국용여도화국역용여도，대8개구유성시화제도적중국성시공교망락진행전면적용여도분석．결과현시，공교망락적전국용여도명현고우국역용여도，동시성시중적국역용여련통괴정현명현적이질분포특정．연구결과대우미래공교선로우화화설계구유일정적삼고개치．
Reliable and robust urban public transport network is not only related to urban residents travel convenience, but also plays a key role in maintaining the normal operation of the entire city system. An important indicator of the reliability and robustness of complex systems is redundancy, i.e. the backup of the same functional components in a system. However, the understanding of the degree of redundancy of the urban public transport network is still rather ambiguous. Based on complex network theory, using connectivity theory and genetic algorithm, the paper develops two redundancy metrics （global redundancy and local redundancy） for urban bus traffic networks, and conducts a comprehensive analy- sis of redundancy of 8 urban public transport networks. The results show that the public transport network of global redundancy is significantly higher than the local redundancy while the local redundant connectivity in the city showing the heterogeneous distribution characteristics. The results have a certain reference value for the optimization and design of bus traffic systems.